Home / 147,404.80-221,107.20-100,165.60

Finding the Fourth Proportional to 147,404.80, 221,107.20 and 100,165.60

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Solution

The fourth proportional to 147,404.80, 221,107.20 and 100,165.60 is: 150,248.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,404.80 : 221,107.20 = 100,165.60 : x
  2. Step 2: Convert to fraction form
    147,404.80/221,107.20 = 100,165.60/x
  3. Step 3: Cross multiply
    147,404.80x = 221,107.20 × 100,165.60
  4. Step 4: Simplify right side
    147,404.80x = 22,147,335,352.32
  5. Step 5: Solve for x
    x = 22,147,335,352.32/147,404.80
  6. Step 6: Final answer
    x = 150,248.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.